In fact, many cloth diaper manufacturers recommend it to clean their diapers. (momtricks.com)
The thing is, that argument was based on a flawed study funded by disposable diaper manufacturers. (gentlediapering.com)
In fact, some cloth diaper manufacturers recommend staying away from them entirely, because they can leave a residue in your washer which can transfer to your diapers. (whattoexpect.com)